Hauling or straining device



Feb. 13, 1923. 1,445,104

I A. A. QUICK HAULING OR STRAI NING DEVICE Filed Nov. 20, 1920 l atented l eh. 13, 1923..

their Id. m 4:51

ALFRED ARTHUR QUICK, 0F THORl FBU'R-Y, VICTORIA, AUSTRALIA, ASSIGNflR TO THE QUICK ENGINEERING COMPANY, PROPRIEZAR T LIMITED, OF THORNBUEY, VIC- TOE'JIA AUSTRALIA.

HAULING OR STRAINING DEVICE.

Application filed November 29, 13%. Serial No. 425,382.

To all whom it may iZC6W/b.

Be it known that Ari-rune ARTHUR Quinn,

subject of the King of Great Britain, resid-' in at 75 Ponders Street, Thornbury, in the State. of Victoria. (loii'inionwcalth of Australia, en 'ineer, has invented certain new and useful improvements in Hauling or Straining Devices. of which the following is a specification.

This invention relates to improvements in haulingand straining devices and refers especially to a device the employment of which enables a comparatively long length of rope or like flexible member to be operated upon without having to provide a winding drum capable of accommodating the whole length of the rope hauled.

The invention is directed to the provision of an economically constructed and cornparatively light and powerful hauling and straining device which will be particularly adaptable for the purpose pulling down trees and uprooting stumps in land clearing operations although it will be found highly eli' v' .nt for other hauling purposes or where heavy weights have to be raised or moved from one place to another.

More particularly the invention is direct-- ed to the provision of iin ivcrnents in that class of hauling); and strain devices wherein the load is maintained on a rope ha-vingr frictional contact with a lever operated winch and a pair of pulleys and the neces sary strain or tension on the rope for maintaining: said frictional contact is applied by the load itself in due proportion both to that portion paying on to the winch as well as to that portion paying off from the winch.

The object of the present invention is to provide means in this class straining device whereby a good frictional contact will be ensured between the rope and thewinch when a load i. applied to the said rope and whereby the rope and operatino; lever are arranged in such a way that the latter canbe operated to irnpart a haulint; movement to the load both in its hat-l:- ward and forward movements. I

I accomplish the abovei'i'ientioncd object by providing a hauling and straining; device comprising a winding drurn anv oscillating lever and pawl and ratchet mechanism for intermittently operating the winding drum,

of hauling and and a hauling rope connected to the lever at a point distant .LL

cm the centre thereof less than the radius or the WlIlCllHg drum and adapted to pas around-one or more pulleys on to the wind ng drain constructed and arwho wore

each of the backward and dents of the operating lever actuates the device to impart a strain to the t 1- hauling rope and a moven'ient to a load attech-ed thereto.

In order that the invention mav be more ence will now be readily understood re had to the accompanyi g sheet of explanatory drawings. wherein .l igz-ure l-is a view in side elevation of a hauling or straining device constructed in accordance with the present invention "and illustrates its application to the purpose of pulling); down trees.

Figure 2 is ap'erspective view of the winch showing; part of an anchor rope and part of a haulii rope connected thereto.

Figure i a view in perspective of part or the operating lever and pawls connected thereto.

Figure l is a view in side elevation of a modified term of winch showing 1116212131501 actuating); the same by the aid of animal DOYVGT.

. Figure 5 view in perspective of the winding; drum of the winch and shows means for applying; the liner of soft metal to the rope groove of the same.

Figure 6 is a view in side elevation of a nn'device.

htly modified form of hauling and strainand an end.

anchor rope (Z connected to its-rear The windiur drum is formed wi h a rope 1), proved .L the end is pivoted to the ends of roovee and the flanges on both sides theref are formed with ratchet teeth f of are An operating lever 9 having; a bifurcated axle o.

and within the bifurcation of the said lever is pivoted a pair of pawls 71 which are adapted to engage with the teeth of ratcliets on the winding drum on the forward movement of the lever. The pawls h are normally kept pressed against the ratchet teeth by means of a spring 6 and a hook 7' on the lever is adapted to engage a bar is connecting the said pawls when the same are lifted in order to retain them in their disengaged positions.

A second pair of pawls Z is pivotel to the frame of the winch and these pawls are adapted to retain the winding drum in posi tion against any tendency it may have to move backward when the device is in use.

The pawls Z are normally kept pressed against the ratchet teeth on the winding drum by a spring m and they can be held out oi": engagement with the said ratchet teeth by means Or a hook a and connecting bar 0 as hereinbefore described with reference to the pawls on the operating lever.

The pawls h and Z are held in their inope positions by the hooks j and it when it desired. to fleet the hauling rope 2f, the winding being then tree to ro- Cullll] tate in both directions.

in some instances it may be advisable to prevent the axle c rotating with the wind ing drum and this can be etlected by passing a pin go through a hole in the end of the said axle and securing the said pin to the frame of the winch as shown in Figures 2 and l of the drawings or by any other approved means. i

A link 9 is pivoted at one end to the lever g at a point distance from the pivot centre thereof equal to one half the radius of the pitch of the rope groove of the winding drum and the opposite end ot the said link is pro ided with a hook r or adjustable gri pping' device 5 for engaging the hauling rope it.

One end of the hauling rope t is connected to the frame oi? a snatch block a and passes therefrom to and around a second snatch block o thence to and around the windin drum 7), to and around the-first snatch clock a and when pulled taut hitched to the hook r or is engaged by tl gripping device 5'.

The frame of the second snatch. block u may be provided. with a roller Q1" around which is looped a rope {/0 connected to the load to be moved and a similar roller w is'connected to the Frame oithe winch to engage the looped anchor rope r] as shown in Figure 1.

When the anchor and load ropes are made 01" hemp or like soft material the rollers w and to permit oi the strain to be equalized on both sides of the loops thereof and when the hauling rope is made 01, the same material it can be readily secured to the hook r by means of a Blackwell hitch or in any other approved way.

When the anchor and load ropes are made meaning of steel wire one of their ends can be fixedly or detachably connected to the tranie of the winch and to the frame of the second snatch connected to each side of the bifurcated end of the operating lever by means of double links q.

The groove 6 of the winding drum 6 is preferably formed with inclined sides and the bottom thereof is provided with a liner of lead a or other suitable alloy or soft material and the object of this soft liner is to provide a good frictional grip for the hauling rope and it also serves to prevent excessive wear on. the same. The rope grooves in the snatch blocks a and o also can be provided with a liner of lead or other suitable material to ensure a soft bed for the rope passing around the same.

The operating lever for the winch can be actuated by hand or by animal or motive power. In Figure 4- where I have shown a winch fitted with means for operating tl lever from a source of power the frame is extended to provide room for the free operation of a pair of connecting links A having their forward ends pivoted to the operating lever and their rear ends mounted on eccentrics B formed on or fitted to a spindle C passing through the frame of the winch.

The eccentrics B can be formed integrally with or they can be fitted rigidly to a rope pulley l) mounted concentrically on the spindle G. A pair of links E is pivoted to the ends of the spindle C and the lower or depending ends of these links are shaped to carry a pair of grooved rollers l A second pair of links (his pivoted to the lower ends of the links E midway between the rollers l and the lower ends of these links support a grooved roller H. The length of the links G and the size oi the roller H and the size of the rollers F are such that when the said links are swung ton ward or rearward the roller H wilhmove close to one or other of the rollers F. i

A rope I is looped around the rope pulley D and its ends are passed between the rollers F and on opposite sides of the roller H as shown in. Figured. The ends of the rope can be formed with eyes J or fitted with hooks or other means for connecting them to animal draught gear (not shown).

In order to operate the winch by animal power one endof the rope I is connected to the draught gear of a horse or other animal and pulled in the direction of the arrow K with the result that the links E and G will swing into position as shown in Figure 4 so that the rope as it leads on to the rope pulley D passes between the roller H and one of the rollers F and is gripped with sufficient pressure to ensure the loop of the rope I securing a good friction engagement with the said pulley D and cause the same to be operated.

lVhen the rope I has been pulled out to its fullest extent the draught gear of the horse or other animal is connected to the mechanism from a motor attached to the frame of the winch or located in any con 'venient posit-ion.

In the modified form of the invention shown in Figure 6 of the drawings the hauling rope I? is connected at one end to the lever and passes therefrom to and around apulley a connected to a load rope m and thence to a winding drum. With this form of the invention a constant hauling movement is applied to the load on both the hackward and forward movements of the operating lever.

In operation the frame 'of the winch is anchored to a stump as shown in Figure 1 or to-any other fixedohiecta'nd the load rope in is connected to the tree or other obie'ct to be moved. The 'pawls h and Z are then placed in their inoperative positions and the hauling rope vt is fleeted through the snatch blocks a and '0 and around the windinn drum 7) to place the first snatch block adjacent to the hook r or the adjustable gripping; device 8. After the parts placed in the positions above described the free end of the rope t is drawn taut and secured to the hook r or to the adjustable gripping devices and the pawls h and Z are released to permit of them returningto the operative positions when the hauling device may be put into operation.

The normal movement of the operating lever is indicated by the sector shown in dotted lines in Figure l and when the lever is moving on its forward stroke the winding drum, rope and snatch blocks move in the directions indicated by the arrows shown in full lines and when the said lever is moving; in the reverse or backward direction the rope and snatch blocks are moved in the direction indicated by the arrows shown in dotted lines. p I

On the forward movementof the operating; lever the winding drum is rotated, and the hauling rope-is drawn around the second snatch block 4) on to and pays off the opposite side of the winding drum so thatthe first snatch block it is drawn away from the I causes the winch and consequent upon the extensionof the loop in that part of the rope passing around the first snatch block a movementis applied to the load. i I a When the lever is moved forward thelinks qyalso move forward and the end of the hauling rope connected thereto is allowed to move forwardly a lesser distance than that part ofthe rope leadingon to and from the winding drum with the result that differential movement or leverageis applied to the hauling rope.

When the operating lever is moved in the reverse or backward. direction the windingdrui'u is held stationary by means of the 116- tainin g; pawls Z until the lever is thrust forward on its next stroke. The rearward movement of the lever causes the haulingrope to be drawn around the first snatch block and around the second snatch block in the direction indicated by the arrows shown in dotted lines and afurth'er movement to be applied to the load. 7 When the lever is moving rearwardly direct leverage isexerted on the hauling rope and the loopsin the rope passing around the first and second snatch hlocksare shortened.

V-Vhe-n the hauling: rope is laid out as shownin Figure lof thedrawings and'the leverionerated on its forward movementras above described the first snatch block iz/will p move toward the load a distance equal to three fourths of the distance the rope ispaid on to the wiindin drum and the second snatch block awill-move toward the winch one eighth of the sald distance the rope is paid onto the winding drum. v

to one halfthe distance of the movement of the hookr'or gripping; device 8 and the second snatch block '1; moves toward the winch a distance equal to one half the movement of the first snatch block.

When a given load tension is applied constantly to the. load rope there is greater friction on the parts of the device when the operating lever is thrust forwardly than when it is thrust rearwardly owing to the winding; drum operating on the forward stroke and remainingv stationary on the reverse stroke. I I i i i In practice it has been found necessary to place the pivotpoint of the links (1 connectinn; the hook 9 or gripping device to the opei' atinn" lever at I I 7 a distance from the axle c slightly greater than one half the radius movement of the lever and to ensure the said lever operating with the application of. a given power n both-directions.

When the device has been operated to draw the snatch hloclrs close to each other thehauling rope is detached from the hook or grab and the pa-wls 7e. and l are released to permit of he hauling rope being ileeted to place the snatch blocks in their original positions and when the hauling rope is attached to the? id hook or grab the devicecan be operated to impart a further movement to the load.

when the liner in the rope groove of the winding drum becomes worn and the mechanical efficiency oi the device reduced and coeliicient of Friction between the surface of the winding drum and the rope may not be sufficient to re the rope ripping the acnt roxce to carry the strain at the highermost point and drawn tightwhen molten lead or soft alloy or other suitable material is poured through the loop; Themolten lead or other material passes around the bottom of the ropegroove and fills the space enclosed by the strap and whenthe metal has cooled strap is re moved and any rough edges or lumps on the liner is removed by the aid of any suitable tool.

' in order to ensure the liner obtaining agood seating in the rope groove of. the winding drum the sides and or bottom of the said groove can be provided with a plurality of shallow recesses N as shown in Figure 5 of the drawings or with flat portions (not shown).

For the purpose of convenience in the description of this invention certain terms have been employed which it will be understood are intended to be read as embracing their equivalents.

In this specification:-

' The term rope is intended to include any other suitable flexible member such as a chain, cable, belt or the like, and vice versa.

T he term winch is intended to include any rotatable drum, barrel, pulley, sheave or the like and vice-versa.

The term snatch hlock is intended to include a pulley, sheave, boll ard or any other device around which a rope is adapted to pass freely.

in the operation of a hauling device con structed according to this invention the position of the load and the anchorage may be transposed and it will be clear that in the foregoing descriptionwhere it is stated that one member or part of a member is connect ed to a loadand the other member or part oi"? a member is connected to an anchorage the same effect may he pr ig said load and anchorage and that the said tern are theretorc transposahle.

)1 claim: I 1. i hauling and straining device comprising a winch having a winding drum, a pivoted operating lever and pawl and ratchet mechanism for intermittently rotating the winding drum, snatch blocks, a hauling rope looped to pass around the snatch hloclrs and the winding drum, one end of the said hauling rope connected to the lover and the opposite end to one of the. snatch blocks, and means for attaching a loal to the snatch block in the loop of the hauling rope and the winch to an anchorage, constructed and arrang d whereby each ot the backward and forw l inoveincnts oi the lever actuates the device to impart strain to the hauling rope and a movement to a load attached tliereto.

2. it hauling and straining device comprising a winch having a winding drum, a pivoted lever and pawl and ratchet mechanism for operating the winding drum, a snatch block, a hauling rope having one end connected the said lever and looped to pass around the snatch block and then passed on to the said winding drum, and connections between the winding drum and an. anchorage and a 'load.

3, A hauling and straining device comprising a winch having a winding drum provided with ratchet teeth, an operating lever pivoted to the winch, pawls on the lever engaging'the ratchet teeth on the wind ing drum, retainin pawls pivoted to the frame of. the winch, a grab connected to the lever at a distance from the pivot point thereof less than the radius of the winding drum, a pair of snatch blocks, a hauling rope connected to the frame of one snatch block and looped around. the second snatch block the winding drum and first "snatch block and having its opposite end adjustlever pivoted to the winch, pawls on the lever engaging the ratchet teeth on the winding drum, retaining pawls on the winch frame engaging the ratchet teeth, a hauling rope having one end connected to the lever at a distance from the pivot point thereof less than the radius oi? the winding drum and passing to the said winding drum, a snatch block in a loop formed in the rope between the lever and the winding drum, and means for connecting a load to the snatch block.

obtained by trans and between the snatch block a). in a hauling andstrasiningdevice, a Winding drum, an oscillating lever and mechanism for partially rotating the Winding drum on one stroke of the lever snatch blocks a hauling rope having loops formed therein and passing around the Winding drum and the snatch blocks and means for connecting one end of the hauling rope-to the lever at a distance from the pivot point thereof less than the radius of the Winding drum.

6. In a hauling and straining device, a Winch having a Winding druni provided with ratchet teeth, a lever pivoted to the spindle of the Winding drum, spring actuated pawls 0n the lever arranged to engage the ratchet teeth, spring actuated retaining pawls on the Winch adapted to engage the pznvls out of engagement with the ratchet teeth on the Winding drum a hauling rope, and means for connecting one end of the ratchet teeth, means for retaining the.

hauling rope to the lever at a distance from the pivot point, thereof equal to approximately one half of the radius of the said Winding druin.

7. In a hauling and straining device as claimed in claim 6, a Winding drun'r hav ing a rope groove therein provided With a liner of soft metal, such as lead as and for the purpose set forth. 8. In a hauling and straining device as claimed in claim 1 a Winding drmn having a rope groove provided with inclined sides,

a liner of soft metal in the bottoin of the rope groove, and recesses 1n the rope groove for firmly retaining the liner, substantially as described. 

